Related Clues:
- Traffic sound
- Show impatience in traffic
- Gaggle sound
- Hit the horn
- Gridlock sound
- Motorist's protest
- 'Out of my way!' indicator
- Gridlock noise
- Bit of urban noise
- Toot one's horn
- Start of many a T-shirt slogan
- Squeeze the Klaxon, e.g.
- Respond to a bumper sticker, perhaps
- Show impatience in a traffic jam
- Car-horn sound